The port_forward_to() method clobbers the specific error code returned
by the transport layer with -1. This patch lets the code preserve the
specific error in question.
Signed-off-by: Richard Cochran <richardcoch...@gmail.com>
---
port.c | 6 ++++--
port.h | 2 +-
2 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/port.c b/port.c
index 6104061..48fff1c 100644
--- a/port.c
+++ b/port.c
@@ -2737,8 +2737,10 @@ int port_forward_to(struct port *p, struct ptp_message
*msg)
{
int cnt;
cnt = transport_sendto(p->trp, &p->fda, TRANS_GENERAL, msg);
- if (cnt <= 0) {
- return -1;
+ if (cnt < 0) {
+ return cnt;
+ } else if (!cnt) {
+ return -EIO;
}
port_stats_inc_tx(p, msg);
return 0;
diff --git a/port.h b/port.h
index a45a7a4..e347e36 100644
--- a/port.h
+++ b/port.h
@@ -94,7 +94,7 @@ int port_forward(struct port *p, struct ptp_message *msg);
* Forward a message on a given port to the address stored in the message.
* @param port A pointer previously obtained via port_open().
* @param msg The message to send. Must be in network byte order.
- * @return Zero on success, non-zero otherwise.
+ * @return Zero on success, negative errno value otherwise.
*/
int port_forward_to(struct port *p, struct ptp_message *msg);
--
2.20.1
_______________________________________________
Linuxptp-devel mailing list
Linuxptp-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linuxptp-devel
